How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 5/16100.0*Average seed
Leverkusen 5 VfL Borussia 0 +0.3
Werder Bremen 1 Karlsruher 3 +0.3
Hertha Berlin 0 Schalke 0 -0.1
Hoffenheim 2 Bayern München 2 +0.0
Week of 5/23100.0*Average seed
Energie Cottbus 3 Leverkusen 0 -0.5
Schalke 2 Hoffenheim 3 +0.2
Points
Chance Will Win Championship